Drum tuning key



FIG. 1 is a top, front perspective view of a drum tuning key showing my new design;

FIG. 2 is a bottom view of the drum tuning key, as shown in FIG. 1;

FIG. 3 is a side view of the drum tuning key, as shown in FIG. 2, wherein both sides of the key wrench are symmetrical;

FIG. 4 is a rear view of the drum tuning key, as shown in FIG. 2; and,

FIG. 5 is a front view of the drum tuning key, as shown in FIG. 2. 

The ornamental design for a drum tuning key, as shown. 